Dampproof building



June 3, 1930-. J. ROSE" DAMIVPROOF BUILDING Filed Aug. :50. 1928Patented June 3, 1930 UNITED STATES PATENT-I-OFFICE J OSEPH ROSE, OF NEWYORK, N. Y., ASSIGNOR TO STRUCTURAL WATERPROOFING COM- PANY, OF NEWYORK, N. Y., A CORPORATION OF NEW YOREK namrrnoor BUILDING- Applicationfiled August 30, 1928. Serial No. 302,941.

ture.

A diflicult problem is presented of pre venting dampness on the insideof buildings in the region of the spandrel beams, particularly when thetype of construction illustrated in the attached drawings is employed.

m dampness by a method of construction which which The object of myinvention is to prevent this will be later described. I

My invention will be better understood by reading the followingdescription in connection with the accompanying drawings, in

Fig. 1 is a perspective View of a'building structure in the region of aspandrel beam with my invention applied thereto;

I Fig. 2 is a cross section of a wall embody- 20 ing my invention;

Fig. 3 is a plan view of the reinforced damp-proofing fabric employed byme; and

Fig. 4 is a sectional View of such reinforced fabric.

Referring to Figs. 1 and 2, the spandrel beam 1 supports the wall 2. Thefloor 3 is usually of concrete and has reinforcing bars 4 which extendover thetop flange of the spandrel beam and are bent inwardly, as

shown at 5. The plaster 6 of a room in the building is shown'in sectionin Fig. 2. On the front face of the spandrel beam 1 is a 'veneercomposed of brick 7 and mortar 8. Because'of this brick veneer, whichordinarily is about 4 inches thick, water which beats against the wallseeps through these bricks 7 into the space back thereof and then runsdown into the wall below the spandrel beam 1 and a damp spot a" pears onthe plaster 6 along the side wall 0 the room just below the base. of thespandrel beam. It is difficult, if not impossible, to treat the interiorwall of the room so as to prevent the appearance of dampness. v

I have devised a means and method by which dampness can be entirelyavoided. This means i's'a reinforced fabric member 9 which is preferablyof the construction-shown in Figs. 3 and 4. The sameconsists of a;cotton fabric 10 and a reinforcingscreen wire during the construction ofthe Wall.

11 placed on one side of the fabric 10, the whole being thensaturated'with damp-proofing compound 12. Sheets of reinforced fabricare applied to the spandrel beam, as shown 1 in Figs. 1 and 2.From'these figures it-will be noted that the fabric covers the entireface of the spandrel beam, extends up over its top and is turned up at13 so that the portion 13 is substantially parallel with the face of thewall. This fabric is also carried downwardly below the base of thespandrel beam and is turned outwardly at 14. It is carried out almost tothe face of the wall, preferably within 1 inch of the'face of the wall.A course of brick is then placed on the part 14 and when the brickworkis carried up overthe spandrel beam, the upturned portion 13 is arrangedto receive the brick and prevent water from running inwardly across thefloor. From the foregoing it will be evident that the wall is completelydamp proof in-the region of the spandrel beam and that it is, therefore,impossible for an water which might seep through the brick to get intothe interior portion of the wall or beam region.

Thespace between the reiiiforcing sheet 9 turned up will remain inposition so that it will not be necessary to turn up this part of thedamp-proofing material after the wall 2 has been completed. This methodhas the advantage that the accumulation of mortar drip'pings will beprevented which would be the case if the damp-proofing membrane were notreinforced, in which event the part 13 would not remain in upturnedpositioned F urthermore, the reinforcement 11 will prevent the ends 5 ofthe reinforcing bars 4 from puncturing the damp-proofing membrane, as itis not always possible to carefully bend down the ends 5 as smoothly asillustrated in Figs. 1 and 2.

' brickwork.

My construction has, among others, the following advantages:

It provides a practically non-puncturable membrane; it is semi-rigid andconforms to the parts over which it is applied; it will hold its shapein place and will allow the inner edge to be turned up to receivebrickwork; it is unnecessary to bind the dampproofing membrane to thebrick work or steel with any mastic or other adhesive material; thismembrane can be installed much more quickly than any membrane previouslyused, as it eliminates the necessity of first trowelling the brick andsteel surface to which it is applied with mastic or other adhesive; itcan be applied directly to a wet surface without impairing itsefficiency in arty Way. This last feature is of considerable importancebecause this material can beapplied on wet brick work immediately afterthe brick layers have completed their Work.

Slight changes in the details of construction can be made withoutdeparting from the spirit of my invention I claim: a

1. In building construction, the combination of a spandrel beam,brickwork on the outside of said beam and reinforced fabricdamp-proofing material between said beam and brickwork andextendingupwardly over said beam, downwardly below said beam andoutwardly to a point near the face of the 2. In building construction,the combination of a spandrel beam, brickwork on the outside of saidbeam and reinforced fabric damp-proofing material between said beam andbrickwork and extending upwardly over said beam, downwardly below saidbeam and outwardly to a point near the face of the brickwork, saidmaterial having its upperedge upturned parallel with the face of thebrickwork. 3

- JOSEPH ROSE.

